Door latch



FIG. 1 is a front perspective view of a door latch showing the design;

FIG. 2 is a front view thereof,

FIG. 3 is a rear view thereof,

FIG. 4 is a side view thereof,

FIG. 5 is a side view opposite that shown in FIG. 4 ,

FIG. 6 is a top view thereof; and,

FIG. 7 is an environmental view thereof.

The broken line portions shown in FIG. 7 illustrates environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a door latch, as shown and described. 